GIAC Certified Incident Handler (GCIH) — Question 205

Which of the following statements are true about tcp wrappers?
Each correct answer represents a complete solution. (Choose all that apply.)

Answer options

• A. tcp wrapper provides access control, host address spoofing, client username lookups, etc.
• B. When a user uses a TCP wrapper, the inetd daemon runs the wrapper program tcpd instead of running the server program directly.
• C. tcp wrapper allows host or subnetwork IP addresses, names and/or ident query replies, to be used as tokens to filter for access control purposes.
• D. tcp wrapper protects a Linux server from IP address spoofing.

Correct answer: A, B, C

Explanation

Options A, B, and C are correct as they accurately describe the functionalities and operations of tcp wrappers. Option D is incorrect because while tcp wrappers enhance access control, they do not inherently protect against IP address spoofing.